
Comprehensive electrical and low voltage construction for Seattle's fifth tallest skyscraper
F5 Tower
Electrical
Audio visual
Security
DAS
Tenant improvement
The F5 Tower is a 44-floor, 660-foot skyscraper. The tower includes 516,000 sq.-ft. of office space, occupied by the F5 Networks Company and a 189 room luxury hotel operated by Lotte Hotel & Resorts. It is the fifth tallest building in Seattle, and the tallest building completed since 1990. Cochran provided the Electrical and Low Voltage construction throughout the building. The project began as a Shell and Core, then a 13-Floor Hotel Tenant Improvement was added to the work scope during construction. As the S&C project wrapped up, F5 Networks leased the remaining 31 floors for their new world headquarters and Cochran performed the design-build out of the space. The electrical build-out included all systems, power, lighting, lighting control, mechanical, and fire alarm. The infrastructure included a busway riser distribution system and two fluid cooled emergency generators. A large ceiling suspended custom LED light sculpture was included in the main lobby. The low voltage scope included telecommunications cabling, DAS, and a Security system including access control, two-way intercom system, and credential lobby turnstyles. For the hotel, solutions included telecommunications, and audio-visual installation of cameras, monitors, and audio cabling in common areas and hotel rooms, suite, and support facilities.
Total area
528,000 sq. ft.
General Contractor
Sellen Construction Company
Location
Seattle, Washington
Estimated cost
37M
Owner
F5
Solutions

Sustainable and reliable power
Cochran is renowned for its exceptional expertise in medium voltage electrical work, setting industry standards through its commitment to precision and safety. With a team of highly skilled engineers and technicians. We excel in the design, installation, and maintenance of medium voltage systems.
The company’s extensive experience includes handling complex electrical infrastructures for a variety of sectors, such as commercial, industrial, and institutional facilities. Cochran’s dedication to using cutting-edge technology and adhering to stringent quality control measures ensures reliable and efficient power distribution solutions.
Our robust portfolio of successful projects and satisfied clients underscores our reputation as a leader in medium voltage electrical services.
Solar
We transform a project’s sustainability ambitions into reality with cutting-edge solar technologies, delivering tailored solutions that dramatically boost efficiency and generate substantial cost savings. Our expertise in designing and installing advanced solar solutions—from state-of-the-art photovoltaic panels to intelligent energy storage—enables your company to efficiently adopt and benefit from clean energy innovations.
From super stadiums to teleconferencing
Audio visual systems can transform your spaces into dynamic branded environments. Cochran maintains a full-service audio visual group for designing, installing, and supporting the latest technologies. Our team executes and provides ongoing support for projects of any size, including corporate conference rooms, auditoriums, retail lobbies, operations centers, and entertainment venues. We also develop content for digital signage systems and large touch-screen installations.
Reliable connectivity
Cochran offers seamlessly integrated security and communication solutions to support various industry verticals and industries. Paired with industry leaders in security technologies, Cochran delivers value through decades of proven operational excellence and exceptional customer service. Cochran deeply understands enterprise integration in the evolving demands of the industry and customers' needs. Cochran leverages a profound understanding of enterprise integration and customer needs to deliver scalable, customizable security solutions that enhance your protection. Our dedicated team of experts ensures optimal performance and functionality to safeguard your needs.
We are skilled in access control, video surveillance, intrusion detection, situation management, and security operations centers. We also provide training and support throughout the life of your security systems.
Emergency responder radio
Emergency Responder Radio Coverage Systems (ERRCS) are a critical component of modern building safety, ensuring clear communication for first responders during emergencies. Cochran's DAS Simplified delivers ERRCS solutions that not only meet occupancy standards and local codes but exceed expectations for reliability. Our FCC-certified engineers use advanced 3D modeling to design fully constructible, NFPA and IFC compliant systems that integrate seamlessly into your building's infrastructure. With expertise spanning 700/800 MHz digital networks, complex VHF and UHF systems, and all major OEM platforms, we provide comprehensive ERRCS solutions.
Cellular (4G & 5G)
Cochran's cellular DAS solutions ensure seamless connectivity throughout your building, supporting all major carriers and technologies from 3G to 5G. We design systems that not only meet today's voice and data demands but are also primed for the future of wireless communication. As 5G opens new doors for IoT, industrial automation, and smart building technologies, our team works closely with you to chart a clear path forward—future-proofing your building's wireless infrastructure and positioning any space for endless innovation.
Security at scale
At Cochran, we specialize in delivering tailored security solutions beyond technology to address real-world challenges. From access control, video surveillance, and intrusion detection to security operations centers, we provide comprehensive, scalable systems to safeguard your assets and operations. Backed by decades of expertise and partnerships with industry-leading technology providers, our team ensures seamless integration, optimal performance, and exceptional service across diverse industries, including healthcare, education, and commercial enterprises.
Our end-to-end approach ensures success at every stage, from risk assessment and customized design to installation, programming, and commissioning. We manage the entire process, including electrical infrastructure and device installation, ensuring efficient implementation and consistent performance. Beyond deployment, we provide training, day-two service, and ongoing maintenance, delivering turnkey solutions that protect your people, assets, and facilities while aligning with your unique objectives and budget.
With certified experts and cutting-edge tools, Cochran can handle projects of any scale while adapting to evolving industry demands. Whether integrating advanced video analytics, cloud-based access control, or AI-enhanced systems, our innovative approach ensures your security is future-proof and reliable—partner with Cochran Security to create a safer, more intelligent, and more secure environment. Contact us today to learn more about our solutions.
Access control
Our technicians are certified to install and support a wide range of access control platforms, including Lenel S2, Avigilon, Mercury, Genetec, and Brivo, ensuring robust security tailored to your facility's needs. We provide versatile solutions for authenticating personnel, utilizing key cards, PIN codes, biometrics, and mobile device authentication to secure your facilities and prevent unauthorized access. Whatever your project requirements, our team delivers access control systems that enhance safety and operational efficiency.
Video surveillance
Our team combines extensive experience and top-tier certifications to deliver advanced video surveillance solutions from industry leaders such as Lenel, Genetec, and Milestone. Beyond standard CCTV and video management systems, we integrate cutting-edge analytics to detect and address potential threats proactively. These intelligent systems enhance security by identifying unusual activity, monitoring high-risk areas, and providing actionable insights in real-time. From initial site surveys and system design to professional installation, testing, and ongoing maintenance, we ensure every solution is tailored to meet your unique security needs.
Tenant improvement
At Cochran, we specialize in tenant improvement (TI) projects, delivering customized solutions that transform commercial and residential spaces to meet the unique needs of each tenant. With expertise in both electrical and construction services, we handle everything from upgrading lighting, wiring, and outlets to reconfiguring walls, ceilings, and HVAC systems. Our team ensures that every project aligns with the tenant’s operational requirements, branding, and aesthetics while adhering to the highest safety standards and building codes. Cochran’s commitment to precision, innovation, and seamless project execution has made us a trusted leader in the tenant improvement field.
Distributed antenna systems (DAS)
Distributed Antenna Systems (DAS) are the lifeline of modern buildings, ensuring robust connections to wireless service providers and emergency systems throughout even the most complex structures. Cochran's DAS Simplified brings this critical technology to life, transforming how people communicate and stay safe in hospitals, office towers, manufacturing plants, and beyond.
Fire alarms
Cochran delivers state-of-the-art fire alarm solutions, partnering with industry leaders to design and install comprehensive systems tailored to each facility's unique needs. Our expertise spans conventional, addressable, and integrated fire alarm technologies, ensuring unparalleled safety, reliability, and regulatory compliance. From initial site assessment to final commissioning and ongoing support, we provide end-to-end fire protection services that safeguard lives and assets.
Lighting
Lighting isn’t as simple as housings for lightbulbs. From meeting the stringent requirements of specialized medical and research environments to creating a world-class atmosphere in massive stadiums and entertainment venues, our team delivers innovative lighting solutions that will make your project shine. Whether requirements are complex and technical, focused on efficiency, or meticulously detailed in their aesthetic, we collaborate with stakeholders from conceptual design through installation, while also providing temporary site lighting and other considerations for ensuring a seamless and efficient process.
Emergency systems
Cochran provides a range of emergency systems to enhance safety, security, and response times in a wide range of facilities and applications. Our portfolio spans nurse call systems for efficient patient care, access control and CCTV networks for improved security, and panic systems for immediate alerts. We also offer Distributed Antenna Systems (DAS) for reliable emergency communications and Firefighter Air Replenishment Systems (FARS) to support first responders, partnering with established manufacturers like Electrocom, Johnson Controls, Siemens, and Honeywell to deliver reliable, integrated emergency response infrastructure. Our solutions are tailored to meet the specific needs of healthcare facilities, commercial complexes, and other environments where safety is crucial, ensuring effective protection and rapid response capabilities.